gelatin liquefaction

gelatin liquefaction

[′jel·ət·ən ‚lik·wə′fak·shən]
(microbiology)
Reduction of a gelatin culture medium to the liquid state by enzymes produced by bacteria in a stab culture; used in identifying bacteria.
References in periodicals archive ?
Biochemical tests such as oxidase, catalase, gelatin liquefaction, urea hydrolysis, methyl red and Voges-Proskauer, starch hydrolysis, indole, nitrate and nitrite reduction, triple sugar iron test (TS1), and HzS production were also performed as per the standard test.
All strains were found to be negative for methyl red and Voges-Proskauer, indole test, gelatin liquefaction, starch hydrolysis, and [H.
Cultural, morphological, and biochemical characteristics of diazotrophic isolates +, Growth; -, no growth; Al, alkaline; Ac, acidic; W, weak SK01 SK02 Cultural Transparent, Transparent, mucoid, mucoid, round, entire, round, entire, raised, large raised, large, dew drop Shape Rods Rods Motility Slow motile Motile Metachromatic + + Catalase test + + Oxidase test - + Methyl red test - Nitrate reduction + + Nitrite reduction + + Citrate utilisation + (W) - Gelatin liquefaction + - Urease production + + Starch hydrolysis - - TSI agar (48 h) Al slant, Al slant, Ac butt Ac butt (w) [H.